Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link. One out of the three major indices are trading lower today with the Dow Jones Industrial Average ( ^DJI) trading down 7 points (0.0%) at 17,032 as of Friday, Aug. 22, 2014, 12:55 PM ET. The NYSE advances/declines ratio sits at 1,152 issues advancing vs. 1,771 declining with 181 unchanged. The Services sector currently sits up 0.3% versus the S&P 500, which is unchanged. On the negative front, top decliners within the sector include LATAM Airlines Group ( LFL), down 1.8%, Western Union ( WU), down 1.5%, Companhia Brasileira De Distribuicao ( CBD), down 1.4%, Verisk Analytics ( VRSK), down 1.1% and Ctrip.com International ( CTRP), down 1.1%. Top gainers within the sector include Fresh Market ( TFM), up 7.3%, Ross Stores ( ROST), up 6.8%, GameStop ( GME), up 5.7%, Foot Locker ( FL), up 3.1% and Tim Hortons ( THI), up 2.9%. TheStreet would like to highlight 3 stocks pushing the sector lower today: 3. McKesson ( MCK) is one of the companies pushing the Services sector lower today. As of noon trading, McKesson is down $1.03 (-0.5%) to $192.42 on light volume. Thus far, 333,308 shares of McKesson exchanged hands as compared to its average daily volume of 1.1 million shares. The stock has ranged in price between $191.63-$193.94 after having opened the day at $193.56 as compared to the previous trading day's close of $193.45. McKesson Corporation delivers pharmaceuticals, medical supplies, and health care information technologies to the healthcare industry in the United States and internationally. The company operates in two segments, McKesson Distribution Solutions and McKesson Technology Solutions. McKesson has a market cap of $44.8 billion and is part of the wholesale industry. Shares are up 19.9% year-to-date as of the close of trading on Thursday. Currently there are 11 analysts that rate McKesson a buy, no analysts rate it a sell, and 2 rate it a hold. TheStreet Ratings rates McKesson as a buy. The company's strengths can be seen in multiple areas, such as its robust revenue growth, solid stock price performance and notable return on equity. We feel these strengths outweigh the fact that the company has had sub par growth in net income. Get the full McKesson Ratings Report now. STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.